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28030548625506 = 2327973659626797
BaseRepresentation
bin1100101111110010111101…
…11001001100100001100010
310200020200202010110212121100
412113321132321030201202
512133223030422004011
6135341020053135230
75622066061045230
oct627713671144142
9120220663425540
1028030548625506
118a27763a42809
12318861202a516
131284366b1b95b
146cc985b57950
15339213b95d56
hex197e5ee4c862

28030548625506 has 96 divisors (see below), whose sum is σ = 70143810871680. Its totient is φ = 7923985118208.

The previous prime is 28030548625459. The next prime is 28030548625523. The reversal of 28030548625506 is 60552684503082.

28030548625506 is a `hidden beast` number, since 2 + 8 + 0 + 3 + 0 + 5 + 4 + 8 + 625 + 5 + 0 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44406900 + ... + 45033696.

It is an arithmetic number, because the mean of its divisors is an integer number (730664696580).

Almost surely, 228030548625506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28030548625506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35071905435840).

28030548625506 is an abundant number, since it is smaller than the sum of its proper divisors (42113262246174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28030548625506 is a wasteful number, since it uses less digits than its factorization.

28030548625506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630568 (or 630565 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 54.

The spelling of 28030548625506 in words is "twenty-eight trillion, thirty billion, five hundred forty-eight million, six hundred twenty-five thousand, five hundred six".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 97 126 194 291 582 679 873 1358 1746 2037 3659 4074 6111 7318 10977 12222 21954 25613 32931 51226 65862 76839 153678 230517 354923 461034 626797 709846 1064769 1253594 1880391 2129538 2484461 3194307 3760782 4387579 4968922 5641173 6388614 7453383 8775158 11282346 13162737 14906766 22360149 26325474 39488211 44720298 60799309 78976422 121598618 182397927 364795854 425595163 547193781 851190326 1094387562 1276785489 2293450223 2553570978 3830356467 4586900446 6880350669 7660712934 13760701338 16054151561 20641052007 32108303122 41282104014 48162454683 96324909366 144487364049 222464671631 288974728098 444929343262 667394014893 1334788029786 1557252701417 2002182044679 3114505402834 4004364089358 4671758104251 9343516208502 14015274312753 28030548625506